When should pesticides be used on citrus or mango?

When should pesticides be used on citrus or mango?

Wed Dec 14, 2011 6:06 am

I live in southern California, and it's almost winter here. I have 3 citrus trees, and 1 mango tree. My citrus trees almost always get attacked by spidermites. What time of the year would be the best time to spray my trees for pests? I had planned on using a chili/neem oil mix to spray. Can this be done anytime of the year?